/* ============================================================
   PENGSHENG TEXTILE — pengshengtextile.com
   Jinzhou City Pengsheng Import & Export Trading Co., Ltd.
   Visual language: deep ink blue + warm cream + antique gold
   ============================================================ */
:root {
  --ink: #16283B;
  --ink-2: #22364C;
  --ink-3: #2F4761;
  --cream: #F6F1E7;
  --cream-2: #EFE7D8;
  --gold: #B98A3D;
  --gold-soft: #D9B878;
  --brown: #6B5D4F;
  --line: rgba(22, 40, 59, 0.14);
  --white: #FFFFFF;
  --serif: "Fraunces", "Georgia", serif;
  --sans: "Public Sans", "Helvetica Neue", Arial, sans-serif;
  --shadow: 0 24px 60px rgba(22, 40, 59, 0.16);
  --radius: 4px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }

h1, h2, h3, .serif { font-family: var(--serif); font-weight: 500; line-height: 1.15; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--ink);
  color: rgba(246, 241, 231, 0.85);
  font-size: 13px;
  letter-spacing: 0.06em;
  padding: 9px 0;
}
.topbar .container { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.topbar b { color: var(--gold-soft); font-weight: 600; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 241, 231, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px; border: 1.5px solid var(--gold);
  display: grid; place-items: center; color: var(--ink);
  font-family: var(--serif); font-size: 20px; border-radius: 50%;
}
.brand-name { font-family: var(--serif); font-size: 21px; letter-spacing: 0.04em; color: var(--ink); }
.brand-name small { display: block; font-family: var(--sans); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--gold); font-weight: 600; }
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a { font-size: 14.5px; letter-spacing: 0.03em; color: var(--ink-2); position: relative; padding: 6px 0; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--gold); transition: width 0.25s ease;
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
  background: var(--ink); color: var(--cream); padding: 11px 22px;
  font-size: 13.5px; letter-spacing: 0.08em; text-transform: uppercase; border-radius: var(--radius);
  transition: background 0.25s ease;
}
.nav-cta:hover { background: var(--gold); color: var(--ink); }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--ink); cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  color: var(--cream); overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(22, 40, 59, 0.92) 0%, rgba(22, 40, 59, 0.72) 42%, rgba(22, 40, 59, 0.25) 100%);
}
.hero-inner { position: relative; z-index: 2; padding: 120px 0; max-width: 680px; }
.hero-kicker {
  font-size: 12.5px; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--gold-soft); margin-bottom: 22px; display: flex; align-items: center; gap: 14px;
}
.hero-kicker::before { content: ""; width: 44px; height: 1.5px; background: var(--gold); }
.hero h1 { font-size: clamp(42px, 6vw, 76px); color: var(--cream); margin-bottom: 26px; }
.hero h1 em { font-style: italic; color: var(--gold-soft); }
.hero p.lead { font-size: 18.5px; color: rgba(246, 241, 231, 0.85); max-width: 560px; margin-bottom: 38px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 15px 30px; font-size: 14px; letter-spacing: 0.09em;
  text-transform: uppercase; border-radius: var(--radius); transition: all 0.25s ease; cursor: pointer;
}
.btn-solid { background: var(--gold); color: var(--ink); font-weight: 600; }
.btn-solid:hover { background: var(--gold-soft); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(185, 138, 61, 0.35); }
.btn-ghost { border: 1.5px solid rgba(246, 241, 231, 0.55); color: var(--cream); }
.btn-ghost:hover { border-color: var(--gold-soft); color: var(--gold-soft); }
.hero-strip {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 3;
  background: rgba(22, 40, 59, 0.78); backdrop-filter: blur(8px);
  border-top: 1px solid rgba(217, 184, 120, 0.35);
}
.hero-strip .container { display: grid; grid-template-columns: repeat(4, 1fr); }
.hs-item { padding: 22px 18px; border-right: 1px solid rgba(217, 184, 120, 0.25); }
.hs-item:last-child { border-right: none; }
.hs-item .num { font-family: var(--serif); font-size: 30px; color: var(--gold-soft); }
.hs-item .lbl { font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(246, 241, 231, 0.72); margin-top: 4px; }

/* ---------- Sections ---------- */
section { padding: 104px 0; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
  font-size: 12px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--gold); font-weight: 600; margin-bottom: 14px; display: block;
}
.section-head h2 { font-size: clamp(30px, 3.6vw, 44px); color: var(--ink); margin-bottom: 16px; }
.section-head p { color: var(--brown); font-size: 16.5px; }
.bg-cream-2 { background: var(--cream-2); }
.bg-ink { background: var(--ink); color: var(--cream); }
.bg-ink .section-head h2 { color: var(--cream); }
.bg-ink .section-head p { color: rgba(246, 241, 231, 0.75); }

/* ---------- Product cards ---------- */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.pcard {
  position: relative; background: var(--white); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: transform 0.3s ease;
}
.pcard:hover { transform: translateY(-6px); }
.pcard .ph { position: relative; height: 380px; overflow: hidden; }
.pcard .ph img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.pcard:hover .ph img { transform: scale(1.05); }
.pcard .ph .tag {
  position: absolute; top: 18px; left: 18px; background: var(--ink); color: var(--gold-soft);
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; padding: 7px 12px; border-radius: 2px;
}
.pcard .pb { padding: 30px 32px 34px; }
.pcard .pb h3 { font-size: 27px; margin-bottom: 10px; }
.pcard .pb p { color: var(--brown); font-size: 15.5px; margin-bottom: 18px; }
.link-more {
  font-size: 13.5px; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 600;
  color: var(--gold); display: inline-flex; align-items: center; gap: 8px;
}
.link-more::after { content: "→"; transition: transform 0.25s ease; }
.link-more:hover::after { transform: translateX(5px); }

/* ---------- Stats ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.stat { text-align: center; padding: 30px 16px; border-top: 2px solid var(--gold); }
.stat .num { font-family: var(--serif); font-size: 46px; color: var(--ink); }
.stat .lbl { font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--brown); margin-top: 6px; }

/* ---------- Gallery ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gallery figure { position: relative; overflow: hidden; border-radius: var(--radius); aspect-ratio: 4/3; cursor: pointer; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease, filter 0.4s ease; }
.gallery figure:hover img { transform: scale(1.06); filter: brightness(0.75); }
.gallery figcaption {
  position: absolute; inset: auto 0 0 0; padding: 34px 14px 12px; font-size: 12.5px; letter-spacing: 0.06em;
  color: var(--cream); background: linear-gradient(transparent, rgba(22, 40, 59, 0.85)); opacity: 0; transition: opacity 0.3s ease;
}
.gallery figure:hover figcaption { opacity: 1; }
.gallery .tall { grid-row: span 2; aspect-ratio: auto; }

/* Magazine-style gallery: full-bleed 12-col grid, no gaps at edges */
.gallery.mag { grid-template-columns: repeat(12, 1fr); grid-auto-rows: 148px; }
.gallery.mag figure { aspect-ratio: auto; height: 100%; }
.gallery.mag img { height: 100%; }
.gallery.mag .s1 { grid-column: span 6; grid-row: span 2; }
.gallery.mag .s2 { grid-column: span 6; }
.gallery.mag .s3, .gallery.mag .s4 { grid-column: span 3; }
.gallery.mag .s5, .gallery.mag .s6 { grid-column: span 3; }
.gallery.mag .s7, .gallery.mag .s8 { grid-column: span 3; }
.gallery.mag .s9, .gallery.mag .s10 { grid-column: span 6; }

/* ---------- Video band ---------- */
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.video-card { background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.video-card video { width: 100%; aspect-ratio: 16/9; object-fit: cover; background: var(--ink); }
.video-card.portrait video { aspect-ratio: 9/16; object-fit: cover; }
.video-card .vb { padding: 18px 20px; }
.video-card .vb h4 { font-family: var(--serif); font-size: 18px; margin-bottom: 4px; }
.video-card .vb p { font-size: 13.5px; color: var(--brown); }

/* ---------- Sustainability card ---------- */
.sustain-card {
  display: block; position: relative; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(110deg, #1C3327 0%, #2A4A38 62%, #2A4A38 100%);
  color: #F0EFE6; padding: 46px 48px; margin-top: 42px;
  box-shadow: var(--shadow); transition: transform 0.3s ease;
}
.sustain-card:hover { transform: translateY(-4px); }
.sustain-card::after {
  content: ""; position: absolute; right: 0; top: 0; bottom: 0; width: 42%;
  background: url("../img/rpet-spinning.jpg") center/cover no-repeat; opacity: 0.92;
}
.sustain-card .kicker { color: #9CC5A9; }
.sustain-card h3 { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 34px); margin-bottom: 10px; color: #FFFFFF; }
.sustain-card p { max-width: 50%; color: rgba(240, 239, 230, 0.82); font-size: 15px; }
.sustain-card .link-more { margin-top: 20px; color: #9CC5A9; }

/* ---------- Process ---------- */
.process { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: step; }
.pstep { padding: 30px 22px; border-left: 1px solid rgba(217, 184, 120, 0.35); position: relative; }
.pstep:first-child { border-left: none; }
.pstep::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--serif); font-size: 30px; color: var(--gold-soft); display: block; margin-bottom: 14px;
}
.pstep h4 { font-family: var(--serif); font-size: 18px; margin-bottom: 8px; color: var(--cream); }
.pstep p { font-size: 13.5px; color: rgba(246, 241, 231, 0.7); }

/* ---------- Features ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feat { background: var(--white); padding: 34px 30px; border-radius: var(--radius); border-top: 3px solid var(--gold); box-shadow: 0 10px 30px rgba(22,40,59,0.08); }
.feat .ico { font-family: var(--serif); font-size: 30px; color: var(--gold); margin-bottom: 14px; display: block; }
.feat h4 { font-family: var(--serif); font-size: 20px; margin-bottom: 10px; }
.feat p { font-size: 14.5px; color: var(--brown); }

/* ---------- Spec tables ---------- */
.spec-wrap { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.spec-wrap table { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec-wrap th {
  text-align: left; background: var(--ink); color: var(--cream);
  font-size: 12.5px; letter-spacing: 0.14em; text-transform: uppercase; padding: 16px 20px; font-weight: 600;
}
.spec-wrap td { padding: 15px 20px; border-bottom: 1px solid var(--line); color: var(--ink-2); }
.spec-wrap tr:nth-child(even) td { background: rgba(246, 241, 231, 0.5); }
.spec-wrap tr:last-child td { border-bottom: none; }
.spec-note { margin-top: 18px; font-size: 13.5px; color: var(--brown); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--ink) 0%, var(--ink-3) 100%);
  color: var(--cream); text-align: center; padding: 88px 0;
}
.cta-band h2 { font-size: clamp(30px, 3.6vw, 46px); margin-bottom: 14px; }
.cta-band p { color: rgba(246, 241, 231, 0.75); max-width: 520px; margin: 0 auto 34px; }

/* ---------- Page hero (inner) ---------- */
.page-hero {
  background: var(--ink); color: var(--cream); padding: 92px 0 76px; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px;
  border: 1.5px solid rgba(217, 184, 120, 0.25); border-radius: 50%;
}
.page-hero h1 { font-size: clamp(36px, 5vw, 58px); margin-bottom: 14px; }
.page-hero p { color: rgba(246, 241, 231, 0.75); max-width: 620px; font-size: 17px; }
.crumb { font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--gold-soft); margin-bottom: 20px; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.about-grid img { border-radius: var(--radius); box-shadow: var(--shadow); }
.about-copy h2 { font-size: clamp(28px, 3.4vw, 40px); margin-bottom: 18px; }
.about-copy p { color: var(--brown); margin-bottom: 16px; }
.about-copy .facts { margin-top: 26px; display: grid; gap: 12px; }
.about-copy .facts li { display: flex; gap: 12px; font-size: 15px; }
.about-copy .facts li::before { content: "✓"; color: var(--gold); font-weight: 700; }
.license-img { margin-top: 20px; max-width: 320px; border: 1px solid var(--line); border-radius: var(--radius); padding: 6px; background: var(--white); }
.license-img figcaption { font-size: 12px; text-align: center; color: var(--brown); padding: 8px 0 4px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; }
.contact-info h3 { font-family: var(--serif); font-size: 24px; margin-bottom: 16px; }
.contact-info p { color: var(--brown); margin-bottom: 24px; }
.c-line { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.c-line .k { font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold); min-width: 92px; font-weight: 600; }
.c-line .v { color: var(--ink-2); }
.c-line .v .ph { color: var(--brown); font-style: italic; }
form.rfq { background: var(--white); padding: 36px; border-radius: var(--radius); box-shadow: var(--shadow); }
form.rfq h3 { font-family: var(--serif); font-size: 24px; margin-bottom: 22px; }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.f-field { margin-bottom: 16px; }
.f-field label { display: block; font-size: 12.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brown); margin-bottom: 7px; font-weight: 600; }
.f-field input, .f-field select, .f-field textarea {
  width: 100%; padding: 13px 14px; border: 1px solid var(--line); border-radius: var(--radius);
  font-family: var(--sans); font-size: 15px; background: var(--cream); color: var(--ink); outline: none; transition: border 0.2s ease;
}
.f-field input:focus, .f-field select:focus, .f-field textarea:focus { border-color: var(--gold); background: var(--white); }
.f-field textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: 12.5px; color: var(--brown); margin-top: 10px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: rgba(246, 241, 231, 0.8); padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-grid h5 { font-family: var(--serif); font-size: 16px; color: var(--cream); margin-bottom: 16px; letter-spacing: 0.04em; }
.footer-grid a { display: block; font-size: 14px; padding: 4px 0; color: rgba(246, 241, 231, 0.68); transition: color 0.2s ease; }
.footer-grid a:hover { color: var(--gold-soft); }
.footer-brand p { font-size: 14px; color: rgba(246, 241, 231, 0.6); margin-top: 14px; max-width: 300px; }
.footer-bottom {
  border-top: 1px solid rgba(246, 241, 231, 0.14); padding-top: 24px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 12.5px; color: rgba(246, 241, 231, 0.5);
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100; background: rgba(16, 28, 42, 0.94);
  display: none; align-items: center; justify-content: center; padding: 40px;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: var(--radius); }
.lightbox .close { position: absolute; top: 24px; right: 32px; color: var(--cream); font-size: 34px; cursor: pointer; background: none; border: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .product-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .gallery.mag { grid-template-columns: repeat(6, 1fr); grid-auto-rows: 130px; }
  .gallery.mag .s1, .gallery.mag .s2, .gallery.mag .s9, .gallery.mag .s10 { grid-column: span 6; }
  .gallery.mag .s3, .gallery.mag .s4, .gallery.mag .s5, .gallery.mag .s6, .gallery.mag .s7, .gallery.mag .s8 { grid-column: span 3; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-strip .container { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  body { font-size: 15.5px; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 76px; left: 0; right: 0;
    background: var(--cream); flex-direction: column; gap: 0; padding: 10px 28px 22px;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; width: 100%; }
  .nav-links .nav-cta { margin-top: 10px; text-align: center; }
  section { padding: 72px 0; }
  .product-grid, .gallery, .video-grid, .features, .stats-grid { grid-template-columns: 1fr; }
  .sustain-card::after { display: none; }
  .sustain-card p { max-width: 100%; }
  .sustain-card { padding: 34px 28px; }
  .gallery.mag { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .gallery.mag figure { grid-column: auto !important; grid-row: auto !important; aspect-ratio: 4/3; }
  .process { grid-template-columns: 1fr; }
  .pstep { border-left: none; border-top: 1px solid rgba(217, 184, 120, 0.35); padding-top: 24px; }
  .hero { min-height: 80vh; }
  .hero-inner { padding: 90px 0; }
  .f-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}